Jvc Ks-fx832r User manual

SERVICE MANUAL

CASSETTE RECEIVER

No.49692

Feb. 2002

KS-FX832R

Area Suffix

EContinental Europe

MO

TP

RDS

PTY

DISP

891011127

DAB

Contents

Safety precaution

Disassembly method

Adjustment method

Description of major ICs

1- 2

1- 3

1-11

1-14~23

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KS-FX832R

1-2

!Burrs formed during molding may be left over on some parts of the chassis. Therefore,

pay attention to such burrs in the case of preforming repair of this system.

Safety precaution

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KS-FX832R

1-3

Press the release switch and remove the front panel

unit in the direction of the arrow.

1.

Disassembly method

Removing the front panel unit

(See Fig.1)

Prior to performing the following procedure, remove

the front panel assembly.

Remove the two screws A attaching the front chassis.

Insert a screwdriver to the two joints aon the left

side of the front chassis, two joints bon the right side

and one joint cfrom upside, then detach the front

chassis toward the front side.

1.

2.

Removing the front chassis

(See Fig.2 to 3)

Remove the three screws B attaching the heat sink

on the left side of the body, and remove the heat

sink.

1.

Removing the heat sink (See Fig.4)

Joint c

Heat sink

Fig.2

Fig.1

Fig. 3

Fig. 4

Front panel unit

Front chassis

A

Front chassis

Joint a

Joint a Joint b

Joint b

BB

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KS-FX832R

1-4

Prior to performing the following procedure, remove

the front chassis and the heat sink.

Turn the body upside down.

Insert a screwdriver to the two joints dand two joints

eon both sides of the body and the joint fon the

back of the body, then detach the bottom cover from

the body.

1.

2.

Removing the bottom cover (See Fig.5)

Prior to performing the following procedure, remove

the front chassis, the heat sink and bottom cover.

Remove the five screws C attaching the rear panel

and one screw D attaching the pine jack on the back

of the body.

1.

Removing the rear panel (See Fig.6 )

Prior to performing the following procedure, remove

the front chassis, the heat sink, bottom cover and the

rear panel.

Remove the two screws E attaching the main

amplifier board assembly on the top cover.

Disconnect connector CP401 on the main amplifier

board assembly from the cassette mechanism

assembly.

1.

2.

Removing the main amplifier board assembly

(See Fig.7)

Bottom cover

Fig. 5

Fig. 6

Fig. 7

Main board assembly

Joints d

Joints e

Joint f

CC

C

D

Rear panel

CP401

EE

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KS-FX832R

1-5

Prior to performing the following procedure, remove

the front chassis, the heat sink, bottom cover and the

main amplifier board assembly.

Remove the four screws Fattaching the cassette

mechanism assembly from the top cover.

1.

Removing the cassette mechanism assembly

(See Fig.8)

Removing the (LCD & key) control switch

board (See Fig.9 to 11)

Prior to performing the following procedure, remove

the front panel assembly.

Remove the four screws Gattaching the rear cover

on the back of the front panel assembly.

Unjoint the nine joints gwith the front panel and the

rear cover.

Remove the control switch board on the back of the

front panel.

1.

2.

3.

Cassette mechanism assembly

F

FFTop cover

Fig. 8

GG

Fig. 9

Fig. 11

Fig. 10

LCD & Key control board

F

Joints g

Joints g Joints g

Joints g

Front panel

Rear cover

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KS-FX832R

1-6

For the 6pin wire extending from connector CN402

on the head amplifier board, disconnect it from the

head relay board.

Disconnect the card wire from connector CN403 on

the head amplifier board.

Remove the screw Aattaching the head amplifier

board.

Move the tab aas shown in Fig.2 and remove the

head amplifier board while moving it in the direction

of the arrow.

1.

2.

3.

4.

Removing the head amplifier board.

(See Fig.1 and 2)

Disconnect the 6pin wire from connector CN402 and

the card wire from CN403 on the head amplifier

board (Refer to Fig.1 and 2).

Remove the four screws Bon the bottom of the

cassette mechanism.

1.

2.

Removing the cassette mechanism

assembly (See Fig.1 to 3)

Fig.1

Cassette mechanism ass’y

Head relay

board

6pin

wire

CN402 CN403

CN402

Head amplifier board

Fig.2

Tab a

Head amplifier board

Fig.3

Cassette mechanism ass’y

B

A

Head amplifier board

CN403

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KS-FX832R

1-7

Unsolder the soldering bon the head relay board.

Remove the screw Cattaching the head relay board.

Remove the head relay board in the direction of the

arrow while releasing the two joints c.

1.

2.

3.

Removing the head relay board

(See Fig.4)

Remove the E washer attaching the load arm using

a pincette or something like that and remove the

spring d.

Move the part of the load arm marked upwards to

release it from the axis of rotation. Then rotate the

load arm in the direction of the arrow to remove it

from the cach.

1.

2.

Removing the load arm (See Fig.5)

Prior to performing the following procedure, remove

the head relay board.

Remove the screw Dattaching the sub chassis.

Push the tab ein the direction of the arrow to detach

the one side of the sub chassis. Then release the

sub chassis from the tab f.

1.

2.

Removing the sub chassis (See Fig.6)

Prior to performing the following procedure, remove

the head relay board, the load arm and the sub

chassis.

Remove the screw Eattaching the reinforce bracket.

Remove the reinforce bracket.

Push the tab gfixing the cassette holder in the

direction of the arrow and open the cassette holder

and the holder arm upward until they stop at an

angle of 45 degrees. Move the two joints hto the

side and remove the cassette holder and the holder

arm from the shaft.

1.

2.

3.

Removing the cassette holder and the

holder arm in the eject mode

(See Fig.7 and 8)

Fig.4 CSoldering b Joint c

Fig.6

Tab f

D

Tab e

Cach

Head relay board

Fig.7

Reinforce bracket

Reinforce

bracket

E

Cassette holder

Sub chassis

Head relay

board

Joint h

Holder arm

Load arm

Joint h

tab g

Fig.5

Spring d

Load arm E washer

Cassette mecha chassis

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KS-FX832R

1-8

Prior to performing the following procedure, remove

the head relay board and the sub chassis.

Remove the two screws Fattaching the play head

(The spring under the play head comes off at the

same time).

1.

Removing the play head (See Fig.9)

Prior to performing the following procedure, remove

the head relay board and the sub chassis.

Push each tab i in the direction of the arrow and pull

out the pinch rollers on both sides.

1.

Removing the pinch roller ass’y

(See Fig.9)

Unsolder the soldering jon the reel disc board.

Push the seven tabs kon the bottom of the cassette

mechanism assembly in the direction of the arrow.

1.

2.

Removing the reel disc board

(See Fig.10)

Unsolder the two soldering lof the motor and the sub

motor.

Release the sub motor from the three tabs m. Push

the sub motor upward and pull out it.

Remove the belt on the bottom of the cassette

mechanism assembly and remove the two screws G

attaching the motor.

1.

2.

3.

Removing the motor and the sub motor

(See Fig.10 and 11)

The motors can be detached before

removing the load arm.

ATTENTION:

Fig.8

Cassette holder

and holder arm

Joint h

Shaft

Joint h

Fig.9

Tab i

Pinch roller ass’yPinch roller ass’y

F

Play head

Spring

Fig.11

Sub motor

Tab m

Load arm

Motor

Soldering l

Tab m

Soldering l

Tab m

Soldering j

Pinch roller ass’y

Tab i Tab i

Tab i

Fig.10

Cassette mechanism ass’y

Tabs k

Reel disc board

Soldering j

Tabs k

G

Motor Belt

Flyhwheel

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KS-FX832R

1-9

Prior to performing the following procedure, remove

the head relay board, the load arm, the sub chassis,

the cassette holder, the holder arm and the reel disc

board.

Remove the belt on the bottom of the cassette

mechanism ass’y.

Remove the slit washer attaching the flywheel on the

upper side of the cassette mechanism ass’y and pull

out the flywheel downward. Then remove another

flywheel in the same way.

1.

2.

3.

Removing the flywheel

(See Fig.10 and 12)

Prior to performing the following procedure, remove

the head relay board, the load arm, the sub chassis,

the cassette holder and the holder arm.

Disengage the part ninside of the reel driver which

engages with the shaft, using a pincette or

something like that. Then remove the reel driver from

the shaft.

Remove the reel driver spring and the reel table.

1.

2.

Removing the reel disc ass’y( )

(See Fig.12 to 14)

When reassembling, make sure to use

a new slit washer.

ATTENTION:

Fig.10

Cassette mechanism ass’y

Tab k

Reel disc board

Soldering j

Tab k

G

Motor Belt

Flyhwheel

Fig.12

Plate

The part n

Reel driver

Reel disc ass’y( )

Push aside

the gear

Tabs o

Reel disc

ass’y( )

The part n

Reel driver

Tab o

Fig.13

Reel driver

Shaft

The part n

Fig.14

Reel driver spring

Reel table

Slit washer

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KS-FX832R

1-10

Release the plate from the three tabs o.

Push aside the gear over the reel table using a

pincette or something like that.

Remove the reel disc ass’y ( ) as with the reel disc

ass’y ( ).

1.

2.

3.

Removing the reel disc ass’y( )

(See Fig.12 to 15)

Do not break the front panel tab fitted

to the metal cover.

ATTENTION:

Prior to performing the following

procedure, remove the reel disc ( ).

ATTENTION:

Fig.15

Push aside the gear and reattach the reel disc Ass’y( ).

Reel disc ass’y( )

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KS-FX832R

1-11

Adjustment method

1.Digital osclloscope(100MHz)

Measuring conditions(Amplifier section)

Power supply voltage

Load impedance

Line out

Standard volume position

Balance and Bass,Treble volume .Fader

:Center(Indication"0")

Loudness,Dolby NR,Sound,Cruise:Off

Volume position is about 2V at speaker output with

following conditions.Playback the test tape VT721.

AM mode 999kHz/62dB,INT/400Hz,30%

modulation signal on receiving.

FM mono mode 97.9MHz/66dB,INT/400Hz,22.5kHz

deviation pilot off mono.

FM stereo mode 1kHz,67.5kHz dev. pilot7.5kHz dev.

Output level 0dB(1 V,50 /open terminal).

for DOLBY level measurement

For playback frequency measurement

For wow flutter & tape speed measurement

For head azimuth measurement

Cassette type for CTG-N

(mechanism adjustment)

DC14.4V(10.5~16V)

4 (2Speakers connection)

20k

Tuner section

BAND STEP

FM : 100kHz (Seek), 50kHz (Manual)

AM : 9kHz step

DUMMY LOAD

Exclusive dummy load should be used for AM

and FM dummy load,there is a loss of 6dB

between SSG output and antenna input. The

loss of 6dB need not be considered since

direct reading of figures are applied in this

working standard.

Arrangement of Adjusting

Cassette Mechanism Section

Azimuth screw

(Forward side)

Azimuth screw

(Reverse side)

Playback head

Tape speed adjust

Capstan motor

Cassette mechanism

(Surface)

Test Instruments reqired for adjustment

2.Frequency Counter meter

3.Electric voltmeter

4.Wow & flutter meter

5.Test Tapes

VT724

VT739

VT712

VT703

6.Torque gauge

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KS-FX832R

1-12

1

C401

C402

C403

C404

C405

C406

C407

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C418

C419

CP401

CP402

CP403

D401

D402

D403

IC401

IC402

Q401

Q402

Q403

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

R419

R420

R421

R422

R423

R424

R425

VR402 VR401

B403

B415

B413

B407

B416

B406

B414

B405

B412

B404

B410

B402

B408

B401 B409

B411

1

11

21

1

17

1

2

E

1

FSMW1101A

31

TPP

VR402:Rch

(Dolby NR level adj)

VR401:Rch

(Dolby NR Frequency response adj)

Arrangment of adjusting

Head amplifier board section (Reverse side)

Information for using a car audio service jig

1. We're advancing efforts to make our extension cords common for all car audio products.

Please use this type of extension cord as follows.

2. As a U-shape type top cover is employed, this type of extension cord is needed to check operation of the

mechanism assembly after disassembly.

3. Extension cord : EXTKSRT002-18P ( 18 pin extension cord ) For connection between mechanism assembly

and main board assembly.

Check for mechanism driving section such as motor ,etc..

Disassembly method

1. Remove the bottom cover.

2. Remove the front panel assembly.

3. Remove the top cover .

4. Install the front panel.

5. Confirm that current is being carried by connecting

an extension cord jig.

Note

Available to connect to the CP701 connector when in-

stalling the front panel.

Cassette mechanism

EXTKSRT002-18P

Extension cord

EXTKSRT002-18P

to Main board

to Cassette mechanism

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KS-FX832R

1-13

Item Conditions Adjustment and Confirmation methods S.Values Adjust

Head

azimuth

adjustment

Head height adjustment

Adjust the azimuth directly. When you

adjust the height using a mirror tape,

remove the cassette housing from the

mechanism chassis. After installing the

cassette housing, perform the azimuth

adjustment.

Load the SCC-1659 mirror tape. Adjust with

height adjustment screw A and azimuth

adjustment screw B so that line A of the

mirror tape runs in the center between Lch

and Rch in the reverse play mode.

After switching from REV to FWD then to

REV, check that the head position set in

procedure 1 is not changed. (If the position

has shifted, adjust again and check.)

Adjust with azimuth adjustment screw B so

that line B of the mirror tape runs in the

center between Lch and Rch in the forward

play mode.

Test tape:

SCC-1659

VT703(10kHz)

Test tape: VTT712

(3kHz)

Test tape: VTT724

(1kHz)

VTT739

(63Hz / 1kHz / 10kHz)

1.

Tape speed

and wow

flutter

confirmation

2.

Play back

frequency

response

confiramation

3.

1.

2.

3.

Check to see if the reading of the F, counter /

wow flutter meter is within 3015 3045(FWD

/ REV), and less than 0.35% (JIS RMS).

In case of out of specification, adjust the

motor with a built-in volume resistor.

1.

2.

Play test tape VTT724, and set the volume

position at 2V.

Play test tape VTT739 and confirm.

1kHz / 10kHz: -1 3dB,

1kHz / 63Hz: 0 3dB,

When 10kHz is out of specification, it will be

necessary to read adjust the azimuth.

1.

2.

3.

Load VTT724 (VT724) (1kHz) and play it

back in the reverse play mode. Set the Rch

output level to max.

Load VTT703 (VT703) (10kHz) and play it

back in the forward play mode. Adjust the

Rch and Lch output levels to max, with

azimuth adjustment screw B. In this case,

the phase difference should be within 45 .

Engage the reverse mode and adjust the

output level to max, with azimuth

adjustment screw C.

(The phase difference should be 45 or

more.)

When switching between forward and

reverse modes, the difference between

channels should be within 3dB. (Between

FWD L and R, REV L and R.)

When VTT721 (VT721) (315Hz) is played

back, the level difference between channels

should be within 1.5dB.

1.

2.

3.

4.

5.

Head azimuth adjustment

Tape speed:

3015

3045Hz

Wow

flutter: less

than 0.35%

Speaker out

1kHz / 63Hz

: 0 3db

1kHz / 10kHz

: -1 3db

Built-in volume

resistor

The tuner section is of an adjustment-freedesign. In case the tuner is in trouble, replace the tuner pack.

A line

B line

Head shield

PBHead

FWD Adj B

REV Adj C HEIGHT Adj A

phase

(0 ) (45 )

Head shield

The head is at low position

during.

The head is at High position

during REV.

Output

level:

Maximum

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Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KS-FX832R

1-14

Description of major ICs

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

SDA

GND

OUTLR

OUTLF

TL

B2L

B1L

IVL

ILL

QSL

IDL

MUTE

ICL

IMD

IBL

IAL

SCL

VCC

OUTRR

OUTRF

TR

B2R

B1R

IVR

ILR

QSR

IDR

Vref

ICR

CAP

IBR

IAR

CD-CH

TAPE

TUNER

POWER

SUPPLY

SOURCE

SELECTOR

VOLUME 1

+20 to -31 dB

LOUDNESS

LEFT

BASS

LEFT

+15 dB

TREBLE

LEFT

+12 dB

BASS

RIGHT

+15 dB

TREBLE

RIGHT

+12 dB

MUTE

FUNCTION

ZERO CROSS

DETECTOR

VOLUME 2

0 to 55 dB

BALANCE

FENDER REAR

VOLUME 2

0 to 55 dB

BALANCE

FENDER FRONT

HC BUS

REC

VOLUME 2

0 to -55dB

BALANCE

FENDER FRONT

VOLUME 2

0 to -55dB

BALANCE

FENDER REAR

VOLUME 1

+20 to -31 dB

LOUDNESS

RIGHT

LOGIC

21

31

2

19

16

15

13

11

22

20

18

17

14

23 25 24 26 27 28

30

29

1

32

3

4

10 8 9 7 6 512

1.Pin layout

3.Pin functions

2.Block diagram

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

No. Pin

No.

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

SDA

GND

OUTLR

OUTLF

TL

B2L

B1L

IVL

ILL

QSL

IDL

MUTE

ICL

IMO

IBL

IAL

Serial data input/output.

Ground.

output left rear.

output left front.

Treble control capacitor left channel or

input from an external equalizer.

Bass control capacitor left channel or

output to an external equalizer.

Bass control capacitor left channel.

Input volume 1. left control part.

Input loudness. left control part.

Output source selector. left channel.

Not used

Input C left source.

Not used

Input B left source.

Input A left source.

I/O

-

O

I

-

I

O

-

I

-

I

Symbol I/O Symbol I/O

Input A right source.

Input B right source.

Electronic filtering for supply.

Input C right source.

Reference voltage (0.5Vcc)

Not used

Output source selector right channel.

Input loudness right channel.

Input volume 1. right control part.

Bass control capacitor right channel

Bass control capacitor right channel or

output to an external equalizer.

Treble control capacitor right channel or

input from an external equalizer.

Output right front.

Output right rear.

Supply voltage.

Serial clock input.

I

-

I

-

O

I

-

O

I

O

-

I

IAR

IBR

CAP

ICR

Vref

IDR

QSR

ILR

IVR

B1R

B2R

TR

OUTRF

OUTRR

Vcc

SCL

Functions Functions

TEA6320T-X (IC161) : E.volume

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX832R

1-15

2. Pin function

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

PBTC1

PBOUT1

OUTREF1

TAPEIN1

Vcc

NC

LINEOUT1

TCH1

NC

MSLPF

G2FB

G1FB

MSTC

MSOUT

NC

NRSW

MUTESW

TAPESW

DRSW

MSMODE

MSSW

NC

TCH2

LINEOUT2

Pin No. Symbol

-

O

I

-

O

-

O

-

I

-

O

Playback equalizer amplifier

capacitance

Playback equalizer amplifier

output

Output reference

TAPE input

Power supply

Line output

Time constant for the HLS

Cut-off frequency adjustment

of the music sensor LPF

Music signal interval detection

Time constant for detecting

music signal interval

Music sensor out

No use

Dolby NR control

Mute function control

Playback equalizer amplifier

control

Head select control

Music sensor mode control

Music sensor control

Time constant for the HLS

Line output

I/O Function

Pin No. Symbol

I/O Function

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

DIREF

GND

TAPEIN2

OUTREF2

PBOUT2

PBTC2

PBFB2

PBRIN2

PBGND

PBFIN2

VCT

PBREF

PBFIN1

PBGND

PBRIN1

PBFB1

-

I

O

-

I

-

I

O

I

-

I

Resistance for setting the

reference

Ground

TAPE input

Output reference

Playback equalizer amplifier

output

Playback equalizer amplifier

capacitance

Playback equalizer amplifier

feedback

Playback equalizer amplifier

input

Playback equalizer amplifier

ground

Playback equalizer amplifier

input

Center

Playback equalizer amplifier

reference

Playback equalizer amplifier

input

Playback equalizer amplifier

ground

Playback equalizer amplifier

input

Playback equalizer amplifier

feedback

PBFB2

PBRIN2

PBGND

PBFIN2

VCT

PBREF

PBFIN1

PBGND

PBRIN1

PBFB1

MSMODE

DRSW

TAPESW

MUTESW

NRSW

MSOUT

MSTC

G1FB

G2FB

PBTC2

PBOUT2

OUTREF2

TAPEIN2

GND

DIREF

LINEOUT2

TCH2

NC

MSSW

PBTC1

PBOUT1

OUTREF1

TAPEIN1

Vcc

NC

LINEOUT1

TCH1

NC

MSLPF

12345678910

30 29 28 27 26 25 24 23 22 21

20

19

18

17

16

15

14

13

12

11

31

32

33

34

35

36

37

38

39

40

7k/12k

300k

F2

F1

30k

45k

300k

7k/12k

F3

OFF/B

100k

T1

-

+

-

70 /120

1

1T2

100k OFF/B

NR

BIAS

MUTE

TAPE EQ

FWD/RVS

LPF +

-DET

Vcc

MS MODE

NR MODE

MS ON/

OFF

-

+

NC

+

-

1.Pin layout & block diagram

CXA2560Q (IC401) : Dolby B type noise reduction system with play back equalizer amp.

70 /120

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX832R

1-16

11

6 20

1

4

10

15

25

13

14

16

12

9

8

5

7

2

22

17

19

18

21

23

24

3

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

IN 1

IN 2

ST BY

Vcc 1/2 Vcc 3/4

OUT 1+

OUT 1-

PWR GND1

OUT 2+

OUT 2-

PWR GND2

R.F

IN 3

IN 4

PRE GND

ON TIME C Muting &

ON Time Control

Circuit

Protective

circuit

Protective

circuit

Mute

circuit

Ripple

Filter

Stand by

Switch

N.C

+

0.22 F

2200 F 0.022 F

0.22 F

TAB

+5V

ST ON

+

47 F

0.22 F

22 F

+

Mute 10K

+

3.3 F

OUT 3+

OUT 3-

Low Level

Mute ON

PWR GND3

OUT 4+

OUT 4-

PWR GND4

LA4743K (IC301) : Power amp

1.Block diagram

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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KS-FX832R

1-17

2.Terminal layout

3.Pin function

LA4743K

TAB

GND

RFO-

STBY

RFO+

VCC1/2

RRO-

GND

RRO+

VREF

RRIN

RFIN

SGND

LFIN

LRIN

ONTIME

LRO+

GND

LRO-

VCC3/4

LFO+

MUTE

LFO-GND

NC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

SymbolPin No. Function

Header of IC

Power GND

Outpur(-) for front Rch

Stand by input

Output (+) for front Rch

Power input

Output (-) for rear Rch

Power GND

Output (+) for rear Rch

Ripple filter

Rear Rch input

Front Rch input

Signal GND

Front Lch input

Rear Lch input

Power on time control

Output (+) for rear Lch

Power GND

Output (-) for rear Lch

Power input

Output (+) for front

Muting control input

Output (-) for front

Power GND

No connection

RPM6938-SV4 (IC602) : Remote sensor

Vcc

Comp

AGC

AMP

PD

Detector

BPF

fo

trimming

circuit

I/V

conversion

magnetic shield

Rout

GND

22k

1.Block diagram

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX832R

1-18

Pin No. Port Name I/O Descriptions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

KEY 0

KEY 1

KEY 2

LEVEL

SM

SQ

LCDCE

LCDDA

LCDSCK

BUSI/O

OPEN

BUSSI

BUSSO

BUSSCK

NC

INLOCK

NC

GNDPORT

VDDPORT

NC

AFCK

MONO

FM/AM

SEEK/STOP

NC

IFC

VDDPLL

FMOSC

NC

GNDPLL

AMEO

FMEO

IC

SD/ST

STAGE0

NC

MOTOR

I

O

I

O

I/O

-

O

I

-

I

-

O

-

I

-

O

Key input 0

Key input 1

Key input 2

Level meter input

S.meter level input

S.Quality level input

CE output to LCD driver

Data output to LCD driver

Clock output to LCD driver

I/O selector output for J-BUS, H : OUT, L: INPUT

Door open detect input

J-BUS Data input

J-BUS Data output

J-BUS Clock in/output

Non connect

Port GND

Port Vdd

Non connect

AF check output, L: AF check

Monaural on /off selecting output, H:mono on

FM/AM switching output L : FM H : AM

Auto seek /stop selecting output, H: Seek, L:Stop

Pulse signal input port for Cruise control

FM/AM midle frequency counter input

PLL Vdd

FM/AM limited generator frequency input

None connect

PLL GND

AM error out output

FM error out output

GND

Station detector, Stereo signal input, H:Find Station, L:Stereo

Pull up

Non connect

Main motor output

UPD178018AGC603 (IC701) : CPU

1. Pin layout

2. Pin function

1

20

60

41

21 ~ 40

80 ~ 61

~

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX832R

1-19

Pin No. Port Name I/O Descriptions

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

FF/REW

F/R

DOLBY

MSIN

I2CCLK

I2CDAO

I2CDAI

REEL

SUBMO1

SUBMO2

MODE

TAPEIN

STANDBY

NC

BEEP

MUTE

PCNT

TELMUTE

DIMIN

DIMOUT

ENC1

ENC2

ACCDET

POWER

RDSSCK

RDSDA

REMOCON

DETACH

J-BUSINT

REGCPU

GND

X2

X1

REGOSC

VDD

RESET

I

O

I

O

I

O

I

O

I

-

O

I

O

I

O

I

-

I

-

Output for input signal level switching for MS L : FF,REW H : PLAY

FWD,REV running direction switch signal input

Dolby on "H" output

MS input

I2C information clock output

I2C information data output

I2C information clock input

Switch for detecting tape end position

Sub motor clock direction input

Sub motor clock opposite detection drive output

Mechanism mode position detection input

Cassette in detection input H : cassette in L : cassette out

Standby position detection input H : eject side L : operation side

Non connect

Touch tone output

Mute output , L : mute on

Power ON /OFF switching output , H : power on

Telephone mute signal detection input

Dimmer signal detection input L : dimmer

Dimmer control output , Dimmer off L output

Rotary volume signal 1 input Power save : L

Rotary volume signal 2 input

Power save 1 Working togethe ACC Power save : L

Power save 2, Working together Back up by H input, stop mode

Clock input for RDS

RDS data input

Remocom input

Detach signal input H : Power save

Cut-in input for J-BUS signal

Regulator for CPU power supply, Connect the GND with 0.1 F.

Ground

Connecting the crystal oscillator for system clock

Regulator for oscillator circuit.Connect the GND with 0.1 F.

Vdd

Pull up

UPD178018AGC603(2/2)

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX832R

1-20

2

1

11

12

10

15 13

14

5

4

6

3

8

9

7

ILM AJGND GND

C6

10u

C5

0.1u

C4

0.1u

C3

0.1u

AUDIO OUT

CD OUT

CTRL

ANT CTRL

EXT OUT

ANT OUT

VCC ACC

Surge Protector

BIAS TSD

C1

100u C2

0.1u

+B

ACC

BATT.DET OUT

COMPOUT

VDD OUT

SW5VOUT

ILMOUT

C7

0.1u

C8

0.1u

R1

UNIT R:

C:F

note1) TAB (header of IC)

connected to GND

HA13164A (IC901) : Regulator

1.Terminal layout

2.Block diagram

3.Pin function

Pin No. Symbol Function

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

EXTOUT

ANTOUT

ACCIN

VDDOUT

SW5VOUT

COMPOUT

ANT CTRL

VCC

BATT DET

AUDIO OUT

CTRL

CD OUT

ILM AJ

ILM OUT

GND

Output voltage is VCC-1 V when M or H level applied to CTRL pin.

Output voltage is VCC-1 V when M or H level to CTRL pin and H level

to ANT-CTRL.

Connected to ACC.

Regular 5.7V.

Output voltage is 5V when M or H level applied to CTRL pin.

Output for ACC detector.

L:ANT output OFF , H:ANT output ON

Connected to VCC.

Low battery detect.

Output voltage is 9V when M or H level applied to CTRL pin.

L:BIAS OFF, M:BIAS ON, H:CD ON

Output voltage is 8V when H level applied to CTRL pin.

Adjustment pin for ILM output voltage.

Output voltage is 10V when M or H level applied to CTRL pin.

Connected to GND.

123456789101112131415

TAB

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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JVC KS-FX832R User manual

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